Not necessarily.Brexit will have no impact on Irish citizens in terms of their right to work. There is legislation that predates Britain and Ireland joining the EU (the Immigration Act 1971) which guarantees Irish citizens right to work in the UK. That will remain in force post-Brexit and so leaving the EU will have no impact on Irish citizens right to work.
Are there implications for people working or studying in the UK?
During the negotiation period of the UK’s withdrawal from the EU, the UK will remain a member state and there will be no changes to the current entitlements of EU citizens to travel and work between Ireland and the UK. Every effort is being made to minimize any changes to these arrangements insofar as Ireland and the UK are concerned and people will be fully informed in advance of any changes eventually made.
I’m counting on this myself but I’d be lying if I said that I didn’t have ANY concerns about it. the current brexit negotiating team doesn't really fill me with confidence!Confirmation of that right for Irish citizens is enshrined in the opening sections of the 1971 Immigration Act which pre-dates the 2 countries joining the EU, and which remains in force today. I’d be astonished if that was changed by Brexit.